Officials investigating the car crash that cost actor Paul Walker his life have ruled the accident was caused by high speed, not mechanical failure.

The Fast & The Furious star was a passenger in the 2005 Porsche Carrera Gt which slammed into a light pole in November (13) and burst into flames, and, in concluding their investigation, Los Angeles County Sheriff's Department experts and officials at California Highway Patrol, have determined that the actor's pal Roger Rodas was driving between 81 and 94 miles-per-hour in a 45 miles-per-hour zone when he lost control of the sportscar.

In his report an accident reconstruction specialist with the Highway Patrol writes, "The vehicle had no mechanical failure and the damage that occurred to the vehicle was from the collision."

At a press conference on Tuesday afternoon (25Mar14), another police official told reporters that there was no other vehicle involved in the crash, dismissing stories suggesting Walker and Rodas were racing another car at the time of the crash.